Evaluation of an emergency call box system /

Bibliographic Details
Main Author:	Goolsby, Merrell E.
Corporate Authors:	Texas. Highway Department, United States. Bureau of Public Roads, Texas Transportation Institute
Other Authors:	McCasland, William R.
Format:	Book
Language:	English
Published:	College Station : Texas Transportation Institute, Texas A&M University, 1969.
Series:	Research report (Austin, Tex.) ; 132-1F.
Subjects:	Express highways > Communication systems. Highway communications. Emergency services.

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